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參數(shù)資料
| 型號(hào)： | LM3200 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers |
| 中文描述： | 微型，可調(diào)，降壓的DC - DC轉(zhuǎn)換器旁路模式射頻功率放大器 |
| 文件頁(yè)數(shù)： | 10/15頁(yè) |
| 文件大?。?/td> | 885K |
| 代理商： | LM3200 |
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Typical Performance Characteristics
(Circuit in
Figure 1
, PV
IN
= V
DD
= EN = 3.6V, BYP = 0V, T
A
=
25C, unless otherwise noted) (Continued)
R
DSON
vs Temperature
Dropout Voltage vs Output Current
(Bypass Mode)
20126134
20126141
Block Diagram
20126135
Operation Description
The LM3200 is a simple, step-down DC-DC converter with a
bypass switch, optimized for powering RF power amplifiers
(PAs) in mobile phones, portable communicators, and similar
battery powered RF devices. It is designed to allow the RF
PA to operate at maximum efficiency over a wide range of
power levels from a single Li-Ion battery cell. It is based on
current-mode buck architecture, with synchronous rectifica-
tion for high efficiency. It is designed for a maximum load
capability of 300 mA in PWM mode and 500 mA in bypass
mode. Maximum load range may vary from this depending
on input voltage, output voltage and the inductor chosen.
The device has three-pin selectable operating modes re-
quired for powering RF PAs in mobile phones and other
L
www.national.com
10
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3200_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Miniature, Adjustable, Step-Down DC-DC Converter with Bypass Mode for RF Power Amplifiers |
| LM320081 | 制造商:Sharp Microelectronics 功能描述:4.7 DFSTN REFLECTIVE 3 |
| LM3200TL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC BUCK CONVERTER POWERWISE 3200 |
| LM3200TL/NOPB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM3200TLEV | 功能描述:電源管理IC開發(fā)工具 LM3200 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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